Should I let my kids meet their grandmother?

Here's a little background as to why they haven't met their grandmother already. My mom and I used to be super close, we were like best friends. I told her literally everything. Then, after college, I decided to move away (a mere two hours away) because I wanted to continue my education and move to where my serious boyfriend got a job. She broke down. She disowned me, cut me out of her life, tried to get my siblings and dad to cut me out too (only 1 out of the 4 people did). I haven't seen her in four years. I haven't talked to her really except we started texting about two months ago. We text a few times once a week about. It's just small talk, nothing ever important or about the past. I should probably also add that my mother suffers from severe depression, anxiety, and probably other mental issues that are undiagnosed.Fast forward, I'm married. I have two kids (one who is almost three and a 6 month old). She wants to meet up in person and meet the kids and see me again. I'm hestitant because of how badly she hurt me before. She was downright vicious and mean to me when the breakdown original happened. I suffered from depression afterwards and it took me two years to come to terms with the fact that I don't have a relationship with my mother. I built walls around myself and am now very suspect of new people. I have crippling fears of making someone not like me or love me anymore. She, more or less, screwed me up mentally. I'm super afraid she hasn't changed and she will mentally screw up my kids too. I'm worried my kids will get close to her only to decide it's not worth it anymore and cut us all out again.What do I do? Do I just say "no thanks, we won't meet" and basically shut the door for good or do I believe she's changed and is going to try harder and let her meet my kids? What would you do? via /r/Parenting http://ift.tt/2lcNMYx